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Journal articles on the topic 'Atlantification'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Polyakov, Igor V., Randi B. Ingvaldsen, Andrey V. Pnyushkov, et al. "Fluctuating Atlantic inflows modulate Arctic atlantification." Science 381, no. 6661 (2023): 972–79. http://dx.doi.org/10.1126/science.adh5158.

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Enhanced warm, salty subarctic inflows drive high-latitude atlantification, which weakens oceanic stratification, amplifies heat fluxes, and reduces sea ice. In this work, we show that the atmospheric Arctic Dipole (AD) associated with anticyclonic winds over North America and cyclonic winds over Eurasia modulates inflows from the North Atlantic across the Nordic Seas. The alternating AD phases create a “switchgear mechanism.” From 2007 to 2021, this switchgear mechanism weakened northward inflows and enhanced sea-ice export across Fram Strait and increased inflows throughout the Barents Sea.

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Kujawa, Agnieszka, Magdalena Łącka, Natalia Szymańska, Joanna Pawłowska, Maciej M. Telesiński, and Marek Zajączkowski. "Could Norwegian fjords serve as an analogue for the future of the Svalbard fjords? State and fate of high latitude fjords in the face of progressive “atlantification”." Polar Biology 44, no. 12 (2021): 2217–33. http://dx.doi.org/10.1007/s00300-021-02951-z.

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AbstractBenthic foraminifera are one of the most widely and abundantly distributed organisms in the fjords of Svalbard and Norway. Due to their short life span and quick reactivity to environmental changes they can be used as indicators of the “atlantification” process. Here, we compare the benthic foraminifera assemblages along the latitudinal gradient, from the fjords of northern Svalbard to southern Norway to assess whether the “atlantification” process may homogenise the foraminiferal assemblages in terms of their abundance and species composition. Furthermore, the previously published dat

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3

Ingvaldsen, Randi B., Karen M. Assmann, Raul Primicerio, Maria Fossheim, Igor V. Polyakov, and Andrey V. Dolgov. "Physical manifestations and ecological implications of Arctic Atlantification." Nature Reviews Earth & Environment 2, no. 12 (2021): 874–89. http://dx.doi.org/10.1038/s43017-021-00228-x.

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4

Blum, Hester. "Atlantification: Facing the Atlantic from the Arctic – a provocation." Atlantic Studies 21, no. 1 (2024): 192–94. http://dx.doi.org/10.1080/14788810.2023.2287277.

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5

Aksenov, P. V., and V. V. Ivanov. "“Atlantification” as a Possible Cause for Reducing of the Sea-Ice Cover in the Nansen Basin in winter." Arctic and Antarctic Research 64, no. 1 (2018): 42–54. http://dx.doi.org/10.30758/0555-2648-2018-64-1-42-54.

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The paper presents arguments in favor of an explanation of the reduction of the ice-covered area in the Nansen basin of the Arctic Ocean (AO) in winter by the so-called “atlantification “ — the strengthening of the influence of waters of Atlantic origin on the hydrological regime of the Arctic Ocean. We hypothesize that the main agent of “atlantification” in theWesternNansenBasinis winter thermal convection, which delivers heat from the deep to the upper mixed layer, thus melting sea ice and warming the near-surface air. To check up this hypothesis we used ocean reanalysis MERCATOR data for ti

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6

Weydmann-Zwolicka, Agata, Paula Prątnicka, Magdalena Łącka, Sanna Majaneva, Finlo Cottier, and Jørgen Berge. "Zooplankton and sediment fluxes in two contrasting fjords reveal Atlantification of the Arctic." Science of The Total Environment 773 (June 2021): 145599. http://dx.doi.org/10.1016/j.scitotenv.2021.145599.

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7

Belter, H. Jakob, Thomas Krumpen, Luisa von Albedyll, et al. "Interannual variability in Transpolar Drift summer sea ice thickness and potential impact of Atlantification." Cryosphere 15, no. 6 (2021): 2575–91. http://dx.doi.org/10.5194/tc-15-2575-2021.

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Abstract. Changes in Arctic sea ice thickness are the result of complex interactions of the dynamic and variable ice cover with atmosphere and ocean. Most of the sea ice exiting the Arctic Ocean does so through Fram Strait, which is why long-term measurements of ice thickness at the end of the Transpolar Drift provide insight into the integrated signals of thermodynamic and dynamic influences along the pathways of Arctic sea ice. We present an updated summer (July–August) time series of extensive ice thickness surveys carried out at the end of the Transpolar Drift between 2001 and 2020. Overal

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8

Ahme, Antonia, Anabel Von Jackowski, Rebecca A. McPherson, et al. "Winners and Losers of Atlantification: The Degree of Ocean Warming Affects the Structure of Arctic Microbial Communities." Genes 14, no. 3 (2023): 623. http://dx.doi.org/10.3390/genes14030623.

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Arctic microbial communities (i.e., protists and bacteria) are increasingly subjected to an intrusion of new species via Atlantification and an uncertain degree of ocean warming. As species differ in adaptive traits, these oceanic conditions may lead to compositional changes with functional implications for the ecosystem. In June 2021, we incubated water from the western Fram Strait at three temperatures (2 °C, 6 °C, and 9 °C), mimicking the current and potential future properties of the Arctic Ocean. Our results show that increasing the temperature to 6 °C only minorly affects the community,

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Schiaparelli, Stefano, Maria Chiara Alvaro, Alice Guzzi, and Marco Grillo. "Cymbulia parvidentata Pelseneer, 1888 (Mollusca, Cymbuliidae) in the Ligurian Sea: further evidence of Atlantic species incursions in the Mediterranean area." Biodiversity Data Journal 11 (February 21, 2023): e99108. https://doi.org/10.3897/BDJ.11.e99108.

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We report the first record of a stranded specimen of <i>Cymbulia parvidentata</i>, a pteropod species of Atlantic origin, in the Ligurian Sea. On 27 February 2022, six <i>C. peronii</i> and one <i>C. parvidentata</i> were collected on Borgio-Verezzi Beach (Savona, Italy - 44.16° N, 8.304633° W). Specimens were examined morphologically and biometrically. Measurements (length, width, height and wet weight) separated the two taxa, <i>C. peronii</i> being larger than <i>C. parvidentata</i>. The finding of <i>C. parvidentata</i>, which has only occasionally been reported in southern Italy, is remar

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10

Freer, Jennifer J., Malin Daase, and Geraint A. Tarling. "Modelling the biogeographic boundary shift of Calanus finmarchicus reveals drivers of Arctic Atlantification by subarctic zooplankton." Global Change Biology 28, no. 2 (2021): 429–40. http://dx.doi.org/10.1111/gcb.15937.

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11

Mańko, Maciej K., Marta Gluchowska, and Agata Weydmann-Zwolicka. "Footprints of Atlantification in the vertical distribution and diversity of gelatinous zooplankton in the Fram Strait (Arctic Ocean)." Progress in Oceanography 189 (November 2020): 102414. http://dx.doi.org/10.1016/j.pocean.2020.102414.

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12

Barton, Benjamin I., Yueng-Djern Lenn, and Camille Lique. "Observed Atlantification of the Barents Sea Causes the Polar Front to Limit the Expansion of Winter Sea Ice." Journal of Physical Oceanography 48, no. 8 (2018): 1849–66. http://dx.doi.org/10.1175/jpo-d-18-0003.1.

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AbstractBarents Sea Water (BSW) is formed from Atlantic Water that is cooled through atmospheric heat loss and freshened through seasonal sea ice melt. In the eastern Barents Sea, the BSW and fresher, colder Arctic Water meet at the surface along the Polar Front (PF). Despite its importance in setting the northern limit of BSW ventilation, the PF has been poorly documented, mostly eluding detection by observational surveys that avoid seasonal sea ice. In this study, satellite sea surface temperature (SST) observations are used in addition to a temperature and salinity climatology to examine th

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13

Górska, Barbara, Sławomira Gromisz, Joanna Legeżyńska, Thomas Soltwedel, and Maria Włodarska-Kowalczuk. "Macrobenthic diversity response to the atlantification of the Arctic Ocean (Fram Strait, 79°N) – A taxonomic and functional trait approach." Ecological Indicators 144 (November 2022): 109464. http://dx.doi.org/10.1016/j.ecolind.2022.109464.

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14

Orlov, Alexei M., Svetlana Yu Orlova, Maxim O. Rybakov, Olga R. Emelianova, and Elena V. Vedishcheva. "First Record of the Northern Wolffish Anarhichas denticulatus Krøyer, 1845 (Anarhichadidae: Zoarcoidei: Perciformes) in the Siberian Arctic: Further Evidence of Atlantification?" Climate 11, no. 5 (2023): 101. http://dx.doi.org/10.3390/cli11050101.

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A single specimen of the northern wolffish Anarhichas denticulatus Krøyer, 1845, 393 mm in length, was documented for the first time in the Siberian Arctic (Laptev Sea, Russia). Species identification was confirmed by an integrative taxonomic approach that included examination of external morphology and DNA barcoding using the COI mtDNA gene. This species is widely distributed in the North Atlantic, but records in the Arctic Ocean are limited to the Canadian and US coasts. This record might represent a significant range extension of about 7500 km for the species and may be associated with the

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15

Watelet, Sylvain, Øystein Skagseth, Vidar S. Lien, et al. "A volumetric census of the Barents Sea in a changing climate." Earth System Science Data 12, no. 4 (2020): 2447–57. http://dx.doi.org/10.5194/essd-12-2447-2020.

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Abstract. The Barents Sea, located between the Norwegian Sea and the Arctic Ocean, is one of the main pathways of the Atlantic Meridional Overturning Circulation. Changes in the water mass transformations in the Barents Sea potentially affect the thermohaline circulation through the alteration of the dense water formation process. In order to investigate such changes, we present here a seasonal atlas of the Barents Sea including both temperature and salinity for the period 1965–2016. The atlas is built as a compilation of datasets from the World Ocean Database, the Polar Branch of the Russian

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16

Mioduchowska, Monika, Joanna Pawłowska, Karol Mazanowski, and Agata Weydmann-Zwolicka. "Contrasting Marine Microbial Communities of the Fram Strait with the First Confirmed Record of Cyanobacteria Prochlorococcus marinus in the Arctic Region." Biology 12, no. 9 (2023): 1246. http://dx.doi.org/10.3390/biology12091246.

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The seawater microbiome is crucial in marine ecosystems because of its role in food chains and biogeochemical cycles; thus, we studied the composition of the pelagic marine microbiome collected in the upper 50 m on the opposite sides of Fram Strait: Spitsbergen and Greenland shelves. We found out that it differed significantly, with salinity being the main environmental variable responsible for these differences. The Spitsbergen shelf was dominated by Atlantic Waters, with a rather homogenous water column in terms of salinity and temperature down to 300 m; hence, the marine microbial community

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17

Dvoretsky, Vladimir G., Marina P. Venger, Anastasya V. Vashchenko, Veronika V. Vodopianova, Ivan A. Pastukhov, and Tatyana M. Maksimovskaya. "Marine Plankton during the Polar Night: Environmental Predictors of Spatial Variability." Biology 12, no. 3 (2023): 368. http://dx.doi.org/10.3390/biology12030368.

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We studied the spatial patterns of the planktonic ecosystems at two Arctic sites strongly affected by Atlantic Inflow (FS, the Fram Strait; and BS, the Barents Sea). A high degree of similarity in the bacterial abundance (mean: 3.1 × 105 cells mL−1 in FS vs. 3.5 × 105 cells mL−1 in BS) was found, while other plankton characteristics were different. Bacterial biomass reached a maximum in BS (3.2–7.9 mg C m−3), while viral abundances tended to be higher in FS (2.0–5.7 × 106 particles mL−1). Larger bacterial cells were found in BS, suggesting the presence of different bacterial populations at bot

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18

Giorli, Giacomo, Aniello Russo, and Sandro Carniel. "Noise levels in a changing Arctic Ocean and its implications for security." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A133. http://dx.doi.org/10.1121/10.0023028.

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Arctic Ocean is undergoing an “Atlantification” of its oceanographic properties. Sea ice retreat and reduction of sea ice age will affect its underwater soundscape, with anthropogenic noise expected to increase due to the exploitation of new maritime routes. The CMRE’s Environmental and Operational Effectiveness Programme conducted a study of the new Arctic oceanographic conditions and ambient noise by deploying in 2021 and in 2022 different moorings equipped with passive acoustic recorders and oceanographic sensors. Data did not show a clear relation between sea-ice concentration and noise le

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19

Årthun, M., T. Eldevik, L. H. Smedsrud, Ø. Skagseth, and R. B. Ingvaldsen. "Quantifying the Influence of Atlantic Heat on Barents Sea Ice Variability and Retreat*." Journal of Climate 25, no. 13 (2012): 4736–43. http://dx.doi.org/10.1175/jcli-d-11-00466.1.

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Abstract The recent Arctic winter sea ice retreat is most pronounced in the Barents Sea. Using available observations of the Atlantic inflow to the Barents Sea and results from a regional ice–ocean model the authors assess and quantify the role of inflowing heat anomalies on sea ice variability. The interannual variability and longer-term decrease in sea ice area reflect the variability of the Atlantic inflow, both in observations and model simulations. During the last decade (1998–2008) the reduction in annual (July–June) sea ice area was 218 × 103 km2, or close to 50%. This reduction has occ

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20

Pnyushkov, Andrey V., Genrikh V. Alekseev, and Alexander V. Smirnov. "On the Interplay between Freshwater Content and Hydrographic Conditions in the Arctic Ocean in the 1990s–2010s." Journal of Marine Science and Engineering 10, no. 3 (2022): 401. http://dx.doi.org/10.3390/jmse10030401.

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We investigated liquid freshwater content (FWC) in the upper 100 m layer of the Arctic Ocean using oceanographic observations covering the period from 1990 through 2018. Our analysis revealed two opposite tendencies in freshwater balance—the freshening in the Canada Basin at the mean rate of 2.04 ± 0.64 m/decade and the salinization of the eastern Eurasian Basin (EB) at the rate of 0.96 ± 0.86 m/decade. In line with this, we found that the Arctic Ocean gained an additional 19,000 ± 1000 km3 of freshwater over the 1990–2018 period. FWC changes in the EB since 1990 demonstrate an intermittent pa

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21

Kudryavtseva, Е. A., M. D. Kravchishina, L. A. Pautova, et al. "PRIMARY PRODUCERS SIZE STRUCTURE IN THE MARGINAL ICE ZONE OF EUROPEAN ARCTIC IN SUMMER." Доклады Российской академии наук. Науки о Земле 508, no. 1 (2023): 108–14. http://dx.doi.org/10.31857/s2686739722601788.

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Primary production (PP) and chlorophyll “a” concentration (chl “a”) estimates in the Eurasian Arctic are discussed, where the continued climatic warming with increased “Atlantification” advance the sea ice losses. The maximum integrated PP and the total chl “a” content observed in the marginal ice zone (MIZ) of the Barents Sea with weakened stratification of the water column and reached 1109 mgC m–2 day–1 and 118 mg m–2. Nearby the ice edge in the Nansen Basin, the main part of PP formed in the upper mixed layer and did not exceed 469 mgC m–2 day–1, the chl “a” content of 56 mg m–2. In the ear

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22

Shabanov, Pavel, Alexander Osadchiev, Natalya Shabanova, and Stanislav Ogorodov. "Decline in Ice Coverage and Ice-Free Period Extension in the Kara and Laptev Seas during 1979–2022." Remote Sensing 16, no. 11 (2024): 1875. http://dx.doi.org/10.3390/rs16111875.

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The duration of ice-free periods in different parts of the Arctic Ocean plays a great role in processes in the climate system and defines the most comfortable sea ice conditions for economic activity. Based on satellite-derived sea ice concentration data acquired by passive microwave instruments, we identified the spatial distribution of the dates of sea ice retreat (DOR), dates of sea ice advance (DOA), and the resulting ice-free period duration (IFP) between these days for the Kara and Laptev seas during 1979–2022. The monthly decline in sea ice extent was detected from June to October in bo

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23

Oziel, L., J. Sirven, and J. C. Gascard. "The Barents Sea polar front and water masses variability (1980–2011)." Ocean Science Discussions 12, no. 2 (2015): 449–92. http://dx.doi.org/10.5194/osd-12-449-2015.

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Abstract. The polar front separates the warm and saline Atlantic Waters encountered in the western part of the Barents Sea from the cold and fresh Arctic Waters situated in the northern part. These water masses can mix together, mainly in the eastern part of the Barents Sea, generating dense waters in winter which can cascade into the Arctic Ocean to form the Artic Intermediate Waters. To study the interannual variability and evolution of these water masses and the fronts, we have merged data from the International Council for the Exploration of the Sea and the Arctic and Antarctic Research In

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24

Henley, Sian F., Marie Porter, Laura Hobbs, et al. "Nitrate supply and uptake in the Atlantic Arctic sea ice zone: seasonal cycle, mechanisms and drivers." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2181 (2020): 20190361. http://dx.doi.org/10.1098/rsta.2019.0361.

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Nutrient supply to the surface ocean is a key factor regulating primary production in the Arctic Ocean under current conditions and with ongoing warming and sea ice losses. Here we present seasonal nitrate concentration and hydrographic data from two oceanographic moorings on the northern Barents shelf between autumn 2017 and summer 2018. The eastern mooring was sea ice-covered to varying degrees during autumn, winter and spring, and was characterized by more Arctic-like oceanographic conditions, while the western mooring was ice-free year-round and showed a greater influence of Atlantic water

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25

Panicker, Dency V., Bhasha Vachharajani, Rohit Srivastava, and Sandip R. Oza. "Analysis of sea ice concentration and thickness over Barents Sea using standard logistic curve model." Journal of Geomatics 17, no. 1 (2023): 68–84. http://dx.doi.org/10.58825/jog.2023.17.1.74.

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As marginal, the Barents Sea plays a major role in the process of Atlantification, and large seasonal variability in sea ice is observed over the region. Current sea ice concentration and thickness obtained from satellite help one understand the variation in sea ice is seasonal. During summer, the concentration and thickness of sea ice are seen to fall, and during winters, it is seen to rise. In order to understand the difference in these variabilities and to analyse the future state of sea ice, a standard logistic curve model is considered. The standard logistic curve model is applied to sea

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26

Sumkina, A. A., K. K. Kivva, V. V. Ivanov, and A. V. Smirnov. "Seasonal ice removal in the Barents Sea and its dependence on heat advection by Atlantic waters." Fundamental and Applied Hydrophysics 15, no. 1 (2022): 82–97. http://dx.doi.org/10.59887/fpg/1krp-xbuk-6gpz.

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The Barents Sea is one of the key areas in the Arctic for monitoring of climate change. Although the Barents Sea is one of the Arctic seas, it is never completely covered with ice. One of the parameters characterizing the change in the ice regime is the date of ice retreat (DOR). The study is based on ice concentration data from the NOAA / NSIDC Climate Data Record (CDR) from 1979 to 2019 and the GLORYS12V1 ocean reanalysis data from 1993 to 2019. The analysis of the spatial and temporal variability of DOR for the Barents Sea using the HDBSCAN cluster analysis method made it possible to identi

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27

Vermassen, Flor, Clare Bird, Tirza M. Weitkamp, et al. "The distribution and abundance of planktonic foraminifera under summer sea ice in the Arctic Ocean." Biogeosciences 22, no. 9 (2025): 2261–86. https://doi.org/10.5194/bg-22-2261-2025.

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Abstract. Planktonic foraminifera are calcifying protists that represent a minor but important part of the pelagic microzooplankton. They are found in all of Earth's ocean basins and are widely studied in sediment records to reconstruct climatic and environmental changes throughout geological time. The Arctic Ocean is currently being transformed in response to modern climate change; however, the effect on planktonic foraminiferal populations is virtually unknown. Here, we provide the first systematic sampling of planktonic foraminifera communities in the “high” Arctic Ocean – defined in this w

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28

Serykh, I. V., and A. V. Tolstikov. "Climate change in the western part of the Russian Arctic in 1980–2021. Part 1. Air temperature, precipitation, wind." Arctic and Antarctic Research 68, no. 3 (2022): 258–77. http://dx.doi.org/10.30758/0555-2648-2022-68-3-258-277.

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The warming of the Arctic climate is confirmed by changes in the main hydrometeorological values of the atmosphere and ocean over a long period of time, and it is most pronounced in the recent decades. Based on monthly average data from the reanalysis of NASA MERRA-2 satellite measurements, we studied climate changes in air temperature, precipitation, and wind speed in the region of the western part of the Russian Arctic (60°–75° N, 30°–85° E) over 1980–2021. The transition between 2000 and 2001 was chosen as the time boundary between the periods, based on the application of the model of stepw

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Santos-Garcia, Marta, Raja S. Ganeshram, Robyn E. Tuerena, et al. "Nitrate isotope investigations reveal future impacts of climate change on nitrogen inputs and cycling in Arctic fjords: Kongsfjorden and Rijpfjorden (Svalbard)." Biogeosciences 19, no. 24 (2022): 5973–6002. http://dx.doi.org/10.5194/bg-19-5973-2022.

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Abstract. Ongoing climate change in the Arctic has caused tidewater glaciers to retreat while increasing the discharge of freshwater and terrestrial material into fjords. This can affect both nutrient inputs and cycling within the fjord systems. In particular, tidewater glaciers and the presence of associated subglacial meltwater plumes can have a large impact on fjord circulation and biogeochemistry. In this study, we assess the influence of tidewater glaciers on nitrogen inputs and cycling in two fjords in Svalbard during the summer using stable isotopic analyses of dissolved nitrate (δ15N a

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30

Noh, Kyung‐Min, Ji‐Hoon Oh, Hyung‐Gyu Lim, Hajoon Song, and Jong‐Seong Kug. "Role of Atlantification in Enhanced Primary Productivity in the Barents Sea." Earth's Future 12, no. 1 (2024). http://dx.doi.org/10.1029/2023ef003709.

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AbstractRecent changes in the Arctic sea‐ice are strongly influenced by the recent increase in heat transport from vigorous Atlantic inflows, so‐called Atlantification. This Atlantification can induce physical and ecological changes near the Atlantic gateway. Here, we used the observational data sets and 26 Earth system models to estimate Atlantic water intrusion, and firstly suggest the impact of Atlantification on marine productivity in the Barents Sea in a warming climate, especially on boreal spring. In a warming climate, the heat transport across the Barents Sea Opening (BSO) is projected

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Polyakov, Igor V., Andrey V. Pnyushkov, Matthew Charette, et al. "Atlantification advances into the Amerasian Basin of the Arctic Ocean." Science Advances 11, no. 8 (2025). https://doi.org/10.1126/sciadv.adq7580.

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Atlantification—the northward inflow of anomalous waters and biota from the Atlantic into the polar basins—has wide-ranging climatological ramifications. We present previously unknown observational evidence that the atlantification processes are strengthening in the eastern Eurasian Basin. The primary example is the diminishing sea ice, which is related to a powerful ocean-heat/ice-albedo feedback, which accelerates sea-ice losses. Furthermore, we observe that atlantification is extending far beyond the Lomonosov Ridge into the Makarov Basin of the Arctic Ocean where upper ocean ventilation cr

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32

Muilwijk, Morven, Aleksi Nummelin, Céline Heuzé, Igor V. Polyakov, Hannah Zanowski, and Lars H. Smedsrud. "Divergence in Climate Model Projections of Future Arctic Atlantification." Journal of Climate, November 30, 2022, 1–53. http://dx.doi.org/10.1175/jcli-d-22-0349.1.

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Abstract The Arctic Ocean is strongly stratified by salinity in the uppermost layers. This stratification is a key attribute of the region as it acts as an effective barrier for the vertical exchanges of Atlantic Water heat, nutrients, and CO2 between intermediate depths and the surface of the Eurasian and Amerasian basins (EB and AB). Observations show that from 1970 to 2017, the stratification in the AB has strengthened, whereas, in parts of the EB, the stratification has weakened. The strengthening in the AB is linked to freshening and deepening of the halocline. In the EB, the weakened str

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Asbjørnsen, Helene, Marius Årthun, Øystein Skagseth, and Tor Eldevik. "Mechanisms Underlying Recent Arctic Atlantification." Geophysical Research Letters 47, no. 15 (2020). http://dx.doi.org/10.1029/2020gl088036.

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Wang, Qiang, Qi Shu, and Fan Wang. "Recent emergence of Arctic atlantification dominated by climate warming." Science Advances 10, no. 48 (2024). http://dx.doi.org/10.1126/sciadv.adq5235.

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The Arctic Ocean’s Eurasian Basin underwent notable atlantification during the 2010s, characterized by warming of the Atlantic Water layer and increased upper ocean salinity. Despite profound implications for the Arctic climate system and marine ecosystems, the primary drivers of this process remain debated. One hypothesis suggested that alternating phases of the atmospheric Arctic Dipole may have mitigated recent atlantification. Here, we use high-resolution model simulations to disentangle the main contributors to atlantification in the Arctic basin. We show that the decline in Arctic sea ic

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35

Descamps, Sébastien, Katarzyna Wojczulanis-Jakubas, Dariusz Jakubas, et al. "Consequences of Atlantification on a Zooplanktivorous Arctic Seabird." Frontiers in Marine Science 9 (June 20, 2022). http://dx.doi.org/10.3389/fmars.2022.878746.

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Global warming, combined with an increasing influence of Atlantic Waters in the European Arctic, are causing a so-called Atlantification of the Arctic. This phenomenon is affecting the plankton biomass and communities with potential consequences for the upper trophic levels. Using long-term data (2005-2020) from a high Arctic zooplanktivorous seabird, the little auk (Alle alle), we tested the hypothesis that the Atlantification affects its diet, body condition and demography. We based our study on data collected in three fjords in West Spitsbergen, Svalbard, characterized by distinct oceanogra

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Sebastien, Descamps, Wojczulanis-Jakubas Katarzyna, Jakubas Dariusz, et al. "Consequences of Atlantification on a zooplanktivorous Arctic seabird." June 20, 2022. https://doi.org/10.3389/fmars.2022.878746.

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This study shows that there are fitness costs for the little auk associated with the Atlantification of West Spitsbergen fjords. These costs seem especially pronounced during the late phase of the chick rearing period, when the energetic needs of the chicks are the highest. Consequently, even if little auks can partly adapt their foraging behaviour to changing environmental conditions, they are negatively affected by the ongoing changes in the Arctic marine ecosystems. These results stress the importance of long-term monitoring data in the Arctic to improve our un

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Balazy, Kaja, Emilia Trudnowska, Katarzyna Wojczulanis-Jakubas, et al. "Molecular tools prove little auks from Svalbard are extremely selective for Calanus glacialis even when exposed to Atlantification." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-40131-7.

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AbstractTwo Calanus species, C. glacialis and C. finmarchicus, due to different life strategies and environmental preferences act as an ecological indicators of Arctic Atlantification. Their high lipid content makes them important food source for higher trophic levels of Arctic ecosystems including the most abundant Northern Hemisphere's seabird, the little auk (Alle alle). Recent studies indicate a critical need for the use of molecular methods to reliably identify these two sympatric Calanus species. We performed genetic and morphology-based identification of 2600 Calanus individuals collect

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Årthun, Marius, Ailin Brakstad, Jakob Dörr, et al. "Atlantification drives recent strengthening of the Arctic overturning circulation." Science Advances 11, no. 28 (2025). https://doi.org/10.1126/sciadv.adu1794.

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The Arctic Ocean is the northern terminus of the Atlantic Meridional Overturning Circulation (AMOC), whose dense water masses are key to the global ocean circulation. The Arctic climate is rapidly changing, and it is not known how the Arctic Ocean overturning circulation is responding. Here, we use a high-resolution ocean reanalysis, corroborated by observations, to show that a poleward expansion of warm Atlantic waters and corresponding sea-ice loss, a phenomenon referred to as an “Atlantification” of the Arctic, has caused a poleward shift of the dense water source regions in recent decades

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Liu, Yujun, and Yijun He. "Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean." Environmental Research Letters, October 19, 2023. http://dx.doi.org/10.1088/1748-9326/ad0518.

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Abstract In recent years, as the Arctic Ocean's warming trend has accelerated, there has been increasing attention on the process of Atlantification in the Arctic Ocean. This study focused on the Arctic Atlantic inflow zone (AAZ) as its research area. Multi-source reanalysis data and in-situ Argo float data were utilized to detect Arctic strong cyclones (ASCs) in the AAZ and analyze the resulting changes in the upper ocean. The findings reveal that during the cold season (October to March), influenced by ASCs' intensity, frequency, tracks, and the concurrent weakening of ocean stratification,

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Liu, Yuqing, Martin Losch, L. Bruno Tremblay, and Markus Janout. "Landfast ice in the Kara Sea stabilizes the Arctic halocline and may slow down Atlantification of the Eurasian Basin." Communications Earth & Environment 6, no. 1 (2025). https://doi.org/10.1038/s43247-025-02360-8.

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Abstract Observations show an Atlantification of the Eurasian Basin of the Arctic Ocean, with deeper penetration, shoaling, and ventilation of Atlantic waters in the eastern Arctic and an associated weakening of the cold halocline layer. These processes have a profound impact on the sea ice cover above and potentially on the transition of the Arctic to a seasonal ice cover. Here we show, using a coupled ice-ocean model, that a proper simulation of the landfast ice cover in the relatively small but deeper peripheral Kara Sea has a disproportionately large influence on the halocline stability in

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Vihtakari, Mikko, Jorg Welcker, Børge Moe, et al. "Black-legged kittiwakes as messengers of Atlantification in the Arctic." Scientific Reports 8, no. 1 (2018). http://dx.doi.org/10.1038/s41598-017-19118-8.

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Golikov, Alexey V., Lis L. Jørgensen, Rushan M. Sabirov, Denis V. Zakharov, and Henk-Jan Hoving. "Long-term annual trawl data show shifts in cephalopod community in the western Barents sea during 18 years." Frontiers in Marine Science 11 (May 23, 2024). http://dx.doi.org/10.3389/fmars.2024.1392585.

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Climate change is threatening marine ecosystems on a global scale but particularly so in the Arctic. As a result of warming, species are shifting their distributions, altering marine communities and predator-prey interactions. This is known as the Atlantification of the Arctic. Warming may favor short-lived, opportunistic species such as cephalopods, marine mollusks that previously have been hypothesized to be winners in an ocean of change. To detect temporal regional trends in biodiversity, long-term annual surveys in hotspots of climate change are an unparalleled source of data. Here, we use

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Devilliers, Marion. "Constraining CMIP6 simulations for Atlantic Water in the Arctic using an AMOC-SST index." April 3, 2025. https://doi.org/10.3389/fclim.2025.1550772.

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This study aims to improve the representation of the #AtlanticWater layer in the Arctic Ocean within #CMIP6 climate model simulations. This is crucial because Atlantic Water inflow significantly influences #Arctic climate change, yet current models show large biases and uncertainty. By selecting model ensemble members that better match observed variability in the subpolar North Atlantic, this work seeks to constrain projections of Arctic #Atlantification. This approach could enhance the reliability of future Arctic climate predictions.

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Jordán, Ferenc, Greta Capelli, Raul Primicerio, et al. "Spatial food webs in the Barents Sea: atlantification and the reorganization of the trophic structure." Philosophical Transactions of the Royal Society B: Biological Sciences 379, no. 1909 (2024). http://dx.doi.org/10.1098/rstb.2023.0164.

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Climate change affects ecosystems at several levels: by altering the spatial distribution of individual species, by locally rewiring interspecific interactions, and by reorganizing trophic networks at larger scales. The dynamics of marine food webs are becoming more and more sensitive to spatial processes and connections in the seascape. As a case study, we study the atlantification of the Barents Sea: we compare spatio-temporal subsystems at three levels: the identity of key organisms, critically important interactions and the entire food web. Network analysis offers quantitative measurements

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Vivier, Frédéric, Antonio Lourenço, Ragnheid Skogseth, et al. "Dense Water Production in Storfjorden, Svalbard, From a 1‐Year Time Series of Observations and a Simple Model: Are Polynyas in a Warming Arctic Exporting Heat to the Deep Ocean?" Journal of Geophysical Research: Oceans 129, no. 10 (2024). http://dx.doi.org/10.1029/2024jc020878.

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AbstractThe formation of dense Brine‐enriched Shelf Water (BSW) in Storfjorden is analyzed during Winter 2016–2017 from mooring observations, a polynya model nudged to satellite observations, and an original BSW production model. The ice season was two months shorter than average, yet 44.2 of sea ice were formed, in line with estimates for the period preceding the atlantification of the Barents Sea in the mid‐2000s: A thinner, more fragile ice may favor polynya openings and frazil ice production. A saline specimen of BSW was produced in large volumes, corresponding to an annual mean transport

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Tesi, Tommaso, Francesco Muschitiello, Gesine Mollenhauer, et al. "Rapid Atlantification along the Fram Strait at the beginning of the 20th century." Science Advances 7, no. 48 (2021). http://dx.doi.org/10.1126/sciadv.abj2946.

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Wold, Anette, Haakon Hop, Camilla Svensen, et al. "Atlantification influences zooplankton communities seasonally in the northern Barents Sea and Arctic Ocean." Progress in Oceanography, September 2023, 103133. http://dx.doi.org/10.1016/j.pocean.2023.103133.

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Wang, Qiang, and Sergey Danilov. "A Synthesis of the Upper Arctic Ocean Circulation During 2000–2019: Understanding the Roles of Wind Forcing and Sea Ice Decline." Frontiers in Marine Science 9 (May 18, 2022). http://dx.doi.org/10.3389/fmars.2022.863204.

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Major changes have occurred in the Arctic Ocean during 2000–2019, including the unprecedented spin-up of the Beaufort Gyre and the emergence of Arctic Atlantification in the eastern Eurasian Basin. We explored the main drivers for these changes by synthesizing numerical simulations and observations in this paper. The Arctic atmospheric circulation was unusual in some years in this period, with strongly negative wind curl over the Canada Basin. However, the wind-driven spin-up of the Beaufort Gyre would have been much weaker had it not been for Arctic sea ice decline. The sea ice decline not on

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De Rovere, Francesco, Leonardo Langone, Katrin Schroeder, et al. "Water Masses Variability in Inner Kongsfjorden (Svalbard) During 2010–2020." Frontiers in Marine Science 9 (January 27, 2022). http://dx.doi.org/10.3389/fmars.2022.741075.

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Kongsfjorden is an Arctic fjord located in the Svalbard archipelago. Its hydrography is influenced by the warm and saline Atlantic Water (AW) in the West Spitsbergen Current and the cold and fresh Polar Water circulating on the shelf. We assess the so-called atlantification of Kongsfjorden in the 2010–2020 decade by inspecting modifications in water properties and water masses variability through moored data and summer CTD surveys. Atlantification in this fjord has emerged as an increasing temperature and salinity, resulting from enhanced advection of Atlantic waters from the West Spitsbergen

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Mańko, Maciej K., Małgorzata Merchel, Sławomir Kwaśniewski, and Agata Weydmann‐Zwolicka. "Atlantification alters the reproduction of jellyfish Aglantha digitale in the European Arctic." Limnology and Oceanography, June 16, 2022. http://dx.doi.org/10.1002/lno.12170.

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